Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/fieldDescriptor.hpp @ 1782:f353275af40e
6981773: incorrect fill value with OptimizeFill
Reviewed-by: kvn, twisti
author | never |
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date | Thu, 02 Sep 2010 11:40:02 -0700 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2005, Oracle and/or its affiliates. All rights reserved. |
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5 * This code is free software; you can redistribute it and/or modify it | |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 // A fieldDescriptor describes the attributes of a single field (instance or class variable). | |
26 // It needs the class constant pool to work (because it only holds indices into the pool | |
27 // rather than the actual info). | |
28 | |
29 class fieldDescriptor VALUE_OBJ_CLASS_SPEC { | |
30 private: | |
31 AccessFlags _access_flags; | |
32 int _name_index; | |
33 int _signature_index; | |
34 int _initial_value_index; | |
35 int _offset; | |
36 int _generic_signature_index; | |
37 int _index; // index into fields() array | |
38 constantPoolHandle _cp; | |
39 | |
40 public: | |
41 symbolOop name() const { return _cp->symbol_at(_name_index); } | |
42 symbolOop signature() const { return _cp->symbol_at(_signature_index); } | |
43 klassOop field_holder() const { return _cp->pool_holder(); } | |
44 constantPoolOop constants() const { return _cp(); } | |
45 AccessFlags access_flags() const { return _access_flags; } | |
46 oop loader() const; | |
47 // Offset (in words) of field from start of instanceOop / klassOop | |
48 int offset() const { return _offset; } | |
49 symbolOop generic_signature() const { return (_generic_signature_index > 0 ? _cp->symbol_at(_generic_signature_index) : (symbolOop)NULL); } | |
50 int index() const { return _index; } | |
51 typeArrayOop annotations() const; | |
52 | |
53 // Initial field value | |
54 bool has_initial_value() const { return _initial_value_index != 0; } | |
55 constantTag initial_value_tag() const; // The tag will return true on one of is_int(), is_long(), is_single(), is_double() | |
56 jint int_initial_value() const; | |
57 jlong long_initial_value() const; | |
58 jfloat float_initial_value() const; | |
59 jdouble double_initial_value() const; | |
60 oop string_initial_value(TRAPS) const; | |
61 | |
62 // Field signature type | |
63 BasicType field_type() const { return FieldType::basic_type(signature()); } | |
64 | |
65 // Access flags | |
66 bool is_public() const { return _access_flags.is_public(); } | |
67 bool is_private() const { return _access_flags.is_private(); } | |
68 bool is_protected() const { return _access_flags.is_protected(); } | |
69 bool is_package_private() const { return !is_public() && !is_private() && !is_protected(); } | |
70 | |
71 bool is_static() const { return _access_flags.is_static(); } | |
72 bool is_final() const { return _access_flags.is_final(); } | |
73 bool is_volatile() const { return _access_flags.is_volatile(); } | |
74 bool is_transient() const { return _access_flags.is_transient(); } | |
75 | |
76 bool is_synthetic() const { return _access_flags.is_synthetic(); } | |
77 | |
78 bool is_field_access_watched() const { return _access_flags.is_field_access_watched(); } | |
79 bool is_field_modification_watched() const | |
80 { return _access_flags.is_field_modification_watched(); } | |
81 void set_is_field_access_watched(const bool value) | |
82 { _access_flags.set_is_field_access_watched(value); } | |
83 void set_is_field_modification_watched(const bool value) | |
84 { _access_flags.set_is_field_modification_watched(value); } | |
85 | |
86 // Initialization | |
87 void initialize(klassOop k, int index); | |
88 | |
89 // Print | |
90 void print_on(outputStream* st) const PRODUCT_RETURN; | |
91 void print_on_for(outputStream* st, oop obj) PRODUCT_RETURN; | |
92 }; |